Year 4 - Maths
Solve problems involving writing, telling and converting the time
Time: Convert between 12 and 24 hour clocks: analogue and digital
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Study Guides
This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will read, write and convert time between analogue and digital 12- and 24-hour clocks. They will solve problems involving converting from hours to minutes, minutes to seconds, years to months, weeks to days.
Lesson Summary
You will learn to solve problems involving writing, telling and converting the time.
Key Notes
- Times tables help us to convert between units of time.
- There are 60 minutes in an hour.
- There are 60 seconds in a minute.
Vocabulary To Learn
- interval: An interval is what is between two values or points, such as 9:00 and 9:30
- convert: When we change a value from one form to another.
Common Mistakes To Avoid
- Remembering that there are 60 minutes in an hour and the values for quarter, half and three quarters of an hour. Calculations are often to and from 60 when working within an hour rather than 100
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Times tables help us to convert between units of time. There are 60 minutes in an hour.
2. Use this key word in a maths sentence and explain it clearly. 'interval'
An interval is what is between two values or points, such as 9:00 and 9:30. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Remembering that there are 60 minutes in an hour and the values for quarter, half and three quarters of an hour. Calculations are often to and from 60 when working within an hour rather than 100. Correction: Make sure children have a clock face available so that they can visualise the times and see the minute hour hands. Children may find it useful to move the minute hand to count on and back in 5s to support their calculations.
More Lessons In This Unit
Browse all guides in the Year 4 Maths guide library.